I wish to alter the behaviour of certain keys for a Text widget. I can add my new handling by binding a callback, but I can't find out how to suppress the original handling for the key.

For example, I'd like to alter the following code so that Control i doesn't insert a tab into the Text widget:

use strict;
use warnings;
use Tk;

my $mw = MainWindow->new;
my $text = $mw->Text ()->pack (-expand => 'yes', -fill => 'both');

$text->bind ('<Control i>', \&callback);
MainLoop;

sub callback {
    print "got a Control i\n";
}

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In reply to How do I suppress handlers when binding callbacks in Tk by GrandFather

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